2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/159711A triangulated piecewise-linear minimal surface in Euclidean 3-space defined using a variational characterization is critical for area amongst all continuous piecewise-linear variations with compact support that preserve the simplicial structure. We explicitly construct examples of such surfaces that are embedded and are periodic in three independent directions of Euclidean 3-space.Differential Geometry53A10text